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Mastering Development

Maximize profit with disregard to number of pickup-delivery done OR tools

I am trying to maximize profit, whether I deliver all pickups-deliveries does not matter. I tried setting SetArcCostEvaluatorOfAllVehicles to use negative profit instead of cost callback; however, this does not work, an I get no solution often, my thought is that cost cannot be negative. Is this correct? Adding AddVariableMaximizedByFinalizer with profit callback does not […]

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Development

Problem about transfer value and combobox at wxPython

Hi I’m wxpython newbie. and an week before I was upload my question and not yet solve. so Today I need more help about my problem so here is the code…. # -*- coding:utf-8 -*- import wx import sqlite3 from PIL import Image # for image processing from wx.adv import Animation, AnimationCtrl # for gif […]

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Development

SQL – Columns will not sum

New to coding SQL and have just been Googling my way to write Queries that work for me but I am having a hard time with the one I am currently working on. The goal of the query is to sum the AHT and ACW columns based on the week number. I got it to […]

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Development

Two-Way Repeated Measures ANOVA: Error in lm.fit()… 0 non-na cases (rstatix)

I am trying to run a Two-Way Repeated Measures ANOVA using the R Statix package based on the description from here however I am running into the subject error with my dataset. The data consist of 10 replicate biomass measurements recorded at each of 8 Locations across 5 months (10 reps x 8 locations x […]

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Development Linux Ubuntu

19.10 – NVMe – blk_update_request errors

So I have a Dell XPS 9560 with a SK Hynix PC400 NVMe 512GB drive. I had this drive in my Latitude 7480 previously with 19.04 and all was fine. When I moved the drive to the 9560 I clean installed 19.10. Since installing 19.10 I have had tons of “blk_update_request: operation not supported error, […]

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Development

The paint method is called again and again and the process is not stopping in Applet and the hex are repainted and i lose all the numbers

I was trying to recreate the catan hexagonal grid and I am new to applet and swing. I am not clear with the concept of paint(). I have found out that graphics method drawPolygon must be used for drawing hexagon and I implemented a grid like structure and the values from the arraylist are populated […]

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Development

R group rows based on a value of specific column and keep lower and greater value on others columns

I have a dataframe library(data.table) test_df=data.frame(chr=c(“chr1″,”chr1″,”chr1″,”chr2″,”chr2″,”chr1″,”chr1″,”chr2”), start=c(700,800,900,350,400,650,800,200), end=c(750,850,950,400,450,700,850,250), id=c(“id_1″,”id_1″,”id_1″,”id_2″,”id_2″,”id_1″,”id_1″,”id_2”)) I’m trying to groups the rows by ID column. For rows which have same values in chr and id, keep the lower value of start column and greater value for end column. I expect for this dataframe something like : chr start end id chr1 650 […]

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Development

After cropping a image, how to find new bounding box coordinates?

Here’s a receipt image that I’ve got and I’ve plotted it using matplotlib, # x1, y1, x2, y2, x3, y3, x4, y4 bbox_coords = [[650, 850], [1040, 850], [1040, 930], [650, 930]] image = cv2.imread(IMG_FILE) gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) fig, ax = plt.subplots(figsize=(20, 20)) ax.imshow(gray, cmap=’Greys_r’); rect = Polygon(bbox_coords, fill=False, linewidth=1, edgecolor=’r’) ax.add_patch(rect) plt.show() print(gray.shape) […]

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Development

Buttons – React Native

I am displaying 3 tables with each having a button in the last column but the button set up makes them all connected and what I am trying to do is have the button function on the first table and the second table to have different wording and the alert to be different, and finally, […]

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Development

Pygame Collidepoint Function Not Working As Desired

I am writing a duel-player tank game with Python’s PyGame and have completed it for the most part. To give some background into my work, the game involves two tanks that can shoot projectiles at one another, and once one is hit, the other player gains a point. The process continues until one player reaches […]